'Underwear Bomber' Umar Farouk Abdulmutallab Pleads Guilty

Umar Farouk Abdulmutallab, the man accused of trying to blow up Northwest Flight 253 on Christmas Day 2009 with a bomb in his underpants, changed his plea to guilty on all counts before saying he did it "to avenge the killing of my Muslim brothers and sisters."

After consulting with his lawyer, the "underwear bomber" was once again read the charges against him in a Detroit court today and after each one, he told the judge, he pleaded guilty.

"The Koran obliges every able Muslim to participate in jihad and fight in the way of Allah," Abdulmutallab told the court after changing his plea. "I carried the device to avenge the killing of my Muslim brothers and sisters... Unfortunately, my actions make me guilty of a crime."